1 /* Dia -- an diagram creation/manipulation program
2 * Copyright (C) 1998 Alexander Larsson
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 typedef struct _DDisplay DDisplay
;
28 #include "render_gdk.h"
29 #include "render_libart.h"
32 #define DDISPLAY_MAX_ZOOM 500.0
33 #define DDISPLAY_NORMAL_ZOOM 20.0
34 #define DDISPLAY_MIN_ZOOM 1.0
37 Diagram
*diagram
; /* pointer to the associated diagram */
39 GtkWidget
*shell
; /* shell widget for this ddisplay */
40 GtkWidget
*canvas
; /* canvas widget for this ddisplay */
41 GtkWidget
*hsb
, *vsb
; /* widgets for scroll bars */
42 GtkWidget
*hrule
, *vrule
; /* widgets for rulers */
43 GtkWidget
*origin
; /* widgets for rulers */
44 GtkWidget
*menu_bar
; /* widget for the menu bar */
45 GtkItemFactory
*mbar_item_factory
; /* item factory used to create the menu bar */
47 /* menu bar widgets */
49 GtkWidget
*visible_grid
;
50 GtkWidget
*snap_to_grid
;
51 GtkWidget
*show_cx_pts_mitem
;
53 GtkWidget
*antialiased
;
55 UpdatableMenuItems updatable_menu_items
;
58 GtkWidget
*snap_status
;
59 GtkWidget
*zoom_status
;
60 GtkWidget
*modified_status
;
62 GtkAccelGroup
*accel_group
;
64 GtkAdjustment
*hsbdata
; /* horizontal data information */
65 GtkAdjustment
*vsbdata
; /* vertical data information */
67 Point origo
; /* The origo (lower left) position */
68 real zoom_factor
; /* zoom, 20.0 means 20 pixel == 1 cm */
69 Rectangle visible
; /* The part visible in this display */
71 Grid grid
; /* the grid in this display */
73 gboolean show_cx_pts
; /* Connection points toggle boolean */
79 GSList
*update_areas
; /* Update areas list */
80 GSList
*display_areas
; /* Display areas list */
81 guint update_id
; /* idle handler ID for redraws */
88 extern GdkCursor
*default_cursor
;
90 DDisplay
*new_display(Diagram
*dia
);
91 /* Normal destroy is done through shell widget destroy event. */
92 void ddisplay_really_destroy(DDisplay
*ddisp
);
93 void ddisplay_transform_coords_double(DDisplay
*ddisp
,
95 double *xi
, double *yi
);
96 void ddisplay_transform_coords(DDisplay
*ddisp
,
99 void ddisplay_untransform_coords(DDisplay
*ddisp
,
102 real
ddisplay_transform_length(DDisplay
*ddisp
, real len
);
103 real
ddisplay_untransform_length(DDisplay
*ddisp
, real len
);
104 void ddisplay_add_update_pixels(DDisplay
*ddisp
, Point
*point
,
105 int pixel_width
, int pixel_height
);
106 void ddisplay_add_update_all(DDisplay
*ddisp
);
107 void ddisplay_add_update(DDisplay
*ddisp
, Rectangle
*rect
);
108 void ddisplay_add_display_area(DDisplay
*ddisp
,
110 int right
, int bottom
);
111 void ddisplay_flush(DDisplay
*ddisp
);
112 void ddisplay_update_scrollbars(DDisplay
*ddisp
);
113 void ddisplay_set_origo(DDisplay
*ddisp
,
115 void ddisplay_zoom(DDisplay
*ddisp
, Point
*point
,
118 void ddisplay_set_renderer(DDisplay
*ddisp
, int aa_renderer
);
119 void ddisplay_resize_canvas(DDisplay
*ddisp
,
123 void ddisplay_render_pixmap(DDisplay
*ddisp
, Rectangle
*update
);
125 DDisplay
*ddisplay_active(void);
126 Diagram
*ddisplay_active_diagram(void);
128 void ddisplay_close(DDisplay
*ddisp
);
130 void ddisplay_set_title(DDisplay
*ddisp
, char *title
);
131 void ddisplay_set_cursor(DDisplay
*ddisp
, GdkCursor
*cursor
);
132 void ddisplay_set_all_cursor(GdkCursor
*cursor
);
134 gboolean
ddisplay_scroll(DDisplay
*ddisp
, Point
*delta
);
135 gboolean
ddisplay_autoscroll(DDisplay
*ddisp
, int x
, int y
);
136 void ddisplay_scroll_up(DDisplay
*ddisp
);
137 void ddisplay_scroll_down(DDisplay
*ddisp
);
138 void ddisplay_scroll_left(DDisplay
*ddisp
);
139 void ddisplay_scroll_right(DDisplay
*ddisp
);
141 void display_update_menu_state(DDisplay
*ddisp
);
142 void ddisplay_update_statusbar(DDisplay
*ddisp
);
143 void ddisplay_do_update_menu_sensitivity (DDisplay
*ddisp
);
144 /* Have to be called from interface.c */
145 GtkPixmap
*snap_status_load_images(GdkWindow
*window
);
147 void display_set_active(DDisplay
*ddisp
);
149 #endif /* DDISPLAY_H */